bug#19152: bug#19013: bug#19152: bug#19013: 25.0.50; Suggestions for M-x commands

[Eli Zaretskii]

> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Date: Sun, 23 Nov 2014 23:11:22 -0500
> Cc: 19152-submitter@debbugs.gnu.org, 19013@debbugs.gnu.org,
>       19152@debbugs.gnu.org
> 
> >> I believe there should be a variable to customize this behavior
> >> (say, suggest-shorter-command-limit; defaulting to 5, but with nil as
> >> an option to disable such suggestions altogether.)  As a workaround,
> >> I’ve simply disabled it entirely (see the patch MIMEd.)
> 
> I don't think that's needed.

I disagree.  This is new behavior different from previous one, and
it's clearly at least a little bit controversial.  So I think we
should have an option to turn it off and get back the old behavior.
Something like what Ivan proposed, with minor changes, would be good,
IMO.